Lambs Grove, IA -- U.S. city in Iowa Population (2000): 225 Housing Units (2000): 80 Land area (2000): 0.101344 sq. miles (0.262479 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.101344 sq. miles (0.262479 sq. km) FIPS code: 42870 Located within: Iowa (IA), FIPS 19 Location: 41.701199 N, 93.078282 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Lambs Grove, IA Lambs Grove